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feat(provider): add Google Vertex/AI context caching annotations #17569

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4298248
feat(provider): add Google Vertex/AI context caching annotations
ccompton-merge Mar 14, 2026
4a04502
test: update transform test to include google cachePoint entry
ccompton-merge Mar 15, 2026
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5 changes: 5 additions & 0 deletions packages/opencode/src/provider/transform.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -179,6 +179,9 @@ export namespace ProviderTransform {
anthropic: {
cacheControl: { type: "ephemeral" },
},
google: {
cachePoint: { type: "default" },
},
openrouter: {
cacheControl: { type: "ephemeral" },
},
Expand DownExpand Up@@ -262,6 +265,8 @@ export namespace ProviderTransform {
model.api.npm !== "@ai-sdk/gateway"
) {
msgs = applyCaching(msgs, model)
} else if (model.api.npm === "@ai-sdk/google-vertex" || model.api.npm === "@ai-sdk/google") {
msgs = applyCaching(msgs, model)
}

// Remap providerOptions keys from stored providerID to expected SDK key
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5 changes: 5 additions & 0 deletions packages/opencode/test/provider/transform.test.ts
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Expand Up@@ -1638,6 +1638,11 @@ describe("ProviderTransform.message - cache control on gateway", () => {
type: "ephemeral",
},
},
google: {
cachePoint: {
type: "default",
},
},
openrouter: {
cacheControl: {
type: "ephemeral",
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